diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 40655af2ef..0852d20510 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -36,6 +36,8 @@ jobs:
   cxx-macos:
     name: C++ unit tests on macOS
     runs-on: macos-latest
+    env:
+      CPATH: /opt/homebrew/opt/openssl@3/include
     steps:
       - uses: actions/checkout@v4
         with:
@@ -46,8 +48,6 @@ jobs:
           bundler-cache: true
       - run: bundle exec rake src/cxx_supportlib/Constants.h
       - run: c++ -o foo.o -Itest/cxx -Itest/support -Isrc/agent -Isrc/cxx_supportlib -Isrc/cxx_supportlib/vendor-copy -Isrc/cxx_supportlib/vendor-modified -include test/cxx/TestSupport.h -Isrc/cxx_supportlib/vendor-modified/libev -DUSE_VENDORED_LIBEV -Isrc/cxx_supportlib/vendor-copy/libuv/include -DTESTING_APPLICATION_POOL -D_REENTRANT -I/usr/local/include -Wall -Wextra -Wno-unused-parameter -Wno-parentheses -Wpointer-arith -Wwrite-strings -Wno-long-long -Wno-missing-field-initializers -Wno-unknown-pragmas -feliminate-unused-debug-symbols -feliminate-unused-debug-types -fvisibility=hidden -DVISIBILITY_ATTRIBUTE_SUPPORTED -Wno-attributes -DHAS_ALLOCA_H -DHAVE_ACCEPT4 -DHAS_SFENCE -DHAS_LFENCE -DPASSENGER_DEBUG -DBOOST_DISABLE_ASSERTS -ggdb -std=gnu++11 -Wno-unused-local-typedefs -Wno-format-nonliteral -DHAS_UNORDERED_MAP -c test/cxx/Core/SecurityUpdateCheckerTest.cpp -v
-        env:
-          C_INCLUDE_PATH: /opt/homebrew/opt/openssl@3/include
       # - run: bundle exec rake -j2 test:cxx
       #   env:
       #     SUDO: '1'